I have books as products in woocommerce and I’m trying to show the order of the book in the series. It should look something like this:

“The book 1 of Series”

I’ve managed to add the link to the series archive but I can’t work out the code to add the rest. The number showing the order in the series is an attribute with the slug “series-order”.

The example of the page (the series name is under the book name): https://tillysbooks.com/product/a-column-of-fire/

The code I have so far is:

/* Display book series archive links on the shop page 
 */
add_action( 'woocommerce_single_product_summary', 'tilly_show_book_series', 6 );

function tilly_show_book_series() {
    global $post;
    $attribute_names = array( 'pa_book-series' );

    foreach ( $attribute_names as $attribute_name ) {
        $taxonomy = get_taxonomy( $attribute_name );

        if ( $taxonomy && ! is_wp_error( $taxonomy ) ) {
            $terms = wp_get_post_terms( $post->ID, $attribute_name );
            $terms_array = array();

            if ( ! empty( $terms ) ) {
                foreach ( $terms as $term ) {
                   $archive_link = get_term_link( $term->slug, $attribute_name );
                   $full_line="<a href="" . $archive_link . '">'. $term->name . '</a>';
                   array_push( $terms_array, $full_line );
                }

                echo  implode( $terms_array, ', ' );
            }
        }
    }
}

I have basic knowledge of PHP and actions and filters and learning while amending Storefront theme.

Thank you very much for your help!!!